(I emailed the website about this like a year ago, at their own request, but the errors are still there. Hopefully this will be more responsive?)

The Simple Melee Weapons section looks fine, but in the other sections I noticed the following mistakes:
-dart, shortbow, and sling are wrong price (should be 5 CP, 25 GP, and 1 SP respectively)
-pike, rapier, and trident are wrong damage (should be 1d10, 1d8, and 1d6; also there's little four next to the lance that doesn't connect to any annotation I could see)
-missing the word "martial" from the martial ranged weapons section